Multiple distributing plate



Jan. 18, 1927.

1315168 B. P.|3C)PF"(E I MULTIPLE DISTRIBUTING PLATE Filed April 9, 1925 INVENTOR.

BY 50% ZDaflmr:

A TTORNEY.

Patented jun. 18, 1927.

UNITED STATES PATENT OFFICE.

MULTIPLE DISTRIBUTING PLATE.

Application fled m 9,

This invention relates to a multiple cut-in device adapted especially for use in connection with wireless apparatus, and has for its object an improved organization of parts I whereby there is rendered possible the listening in by several persons, each provided with a receiving or ear set, 11 on a single re ceiving a paratus, thus enabling several persons to s are the message or musical selection that is being broadcasted, even though the receiving apparatus in general be not equipped with special devices for making the sounds audible to a room full of persons in general. While especially adapted to this purpose, it will be obvious that the construction herein disclosed is also adaptable to similar and analogous uses, such as telephone terminals and the like.

In the drawings:

Figure 1 is a erspective of my improved construction wit a pair of head piece .terminals in position thereon.

Fi re 2 is a cross-sectional view of the insulating panel and its supported terminal strips, with the receiving terminal plugs in position.

Figure 3 is a perspective of the rear side of one of the terminal strips alone, showing es ecially the resilient clip or leaf members I a apted to engage the inserted plug.

Figure 4 is a plan view of onset these strips as initially cut out, and before being bent to the shape shown in Figure 3.

A indicates a panel of insulating material,

I in which are cut a air of slots or recesses such as B into 'whic extend the leaf spring portions l) of the socketed plates C. As shown in Figure 4, each one of these lates consists of a piece of sheet metal having a 0 central, ortion which is provided with a plu-v rality o perforations or sockets F at spaced intervals along its length, and from each side of which project individual leavesor tongues D, which are, when the article is Al bent to the com leted form shown in Figure 3, provided wit grooves or trough-like indentations G, in order to more efiiciently enge the plugs H of the head sets, when'introduced into any one of the sockets F, as

I hereinafter described. Each of these sheet metal plates C is provided with screw holes J, through which screws or bolts mag be inserted to firmly attach eachof the p ates to the insulating panel A, with the end spring 192:. Serial No. 630,801.

clip p ortions D extending through the cut- I! away slots B.

lVith the socketed plates bent from the position shown in Figure 4 to that shown in Figure 3 and firmly placed in the insulating panel A, each plate as C and C being con nected to the terminal of a circuit wire as L andL, the terminal lugs,-such as H and H and K and K', 0? a plurality of head piece receiving devices, may be inserted in one hole or socket of each of the plates C and G, thus completing a circuit through the parts vof the head set. If only one person desires to listenin, the device functions with the same efliciency as when users for each set of sockets avail themselves of the chance to listen in. Each air of leaves or tongues D is quite .indepen ent of those adjoining it as regards their resilient frictional engagement with the surface of the inserted plug, and yet all are correlated into II an easily manufactured and mounted unit I by the perforated'but otherwise uncut center portion of the. plate.

What I claim is:

1 Means for permitting the operative connection of a plurality of sets of receiving terminals with the panel of a sending apparatus, comprising a plate having-in its exposed portion a plurality of sockets and a corresponding number of pairs of rearwardly extending resilient tongues flanking said sockets in position to frictionally engage inserted circuit terminals, and an insulating panel having a recess into which said sets of tongues pro ect, and whereby said plate is supporte in position of operative accessibilit 2. A distributing plate for the panel of a radio or similar electrical device, comprising an exposed central portion havin a: plurality of terminal-receivingsockets an a plurality of 'rearwardly projecting .integral tongues 7 arranged in pairs appurtenantly to said several sockets in position of potential frictional engagement with an inserted terminal.

3. A device for connecting terminals of a plurality of head telephone receivers to the anel of a radio set, comprising a plate havingterminal receiving grooves therein, and

spring teeth opposed to said grooves, each 105 of said teeth having a free end and adapted to be placed under tension on entrance of a terminal in the groove opposed "thereto,

thereby detachably to hold-the terminal in the groove, said plate having a portion adapted to be secured to the panel of the radio set.

4. A device for connecting terminals of a plurality of head telephone receivers to the panel of a radio set, comprising a member having sockets for receiving the terminals,

emme each of said sockets having a resilient wall adapted to be tensioned and to press against a terminal to hold the same in the socket, said member having rovision for connecting the same to the pane of the radio set.

In testimony whereof, I sign this specification in the presence of two witnesses.

BERT P. DOPPKE. 

